Heat a large pot over medium-high heat with 2 turns of the pan of EVOO, about 2 tablespoons. When the oil ripples, add the ground sirloin and crumble the meat as it cooks, about 3 minutes. Add the onion and garlic, chili powder, grill seasoning, cumin and coriander. Cook another 5 minutes.
Add beer and cook another minute, stirring to loosen any bits from the bottom of the pan. Add the stock and tomatoes, and bring to a bubble. Reduce heat and simmer 10 minutes. Serve with your favorite chili toppings.